1. highest frequency

The highest frequency at which device produces audio. The higher the high-frequency response, the clearer and crispier the treble.

25000Hz

Sony MDR-Z1R: 120000Hz

23000Hz

2. lowest frequency

The lowest frequency at which the device produces audio. The lower the low-frequency response, the stronger and juicier the bass.

10Hz

Sony MH1CBLK: 1Hz

16Hz

3. weight

6g lighter.

175g

Sony MDR-EX150AP: 3g

181g

4. has sound isolation / passive noise reduction

The device sits tightly in place, creating an acoustic seal which reduces background noise and prevents your music from leaking out.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

48% have it

5. impedance

Impedance is the device’s electrical resistance to the current being pushed through it. The lower the impedance, the easier it is to get higher volume and requires less power.

47Ohms

Flips Solo 2 Social: 4Ohms

32Ohms

6. sound pressure level

Devices with a higher sound pressure level are generally louder when supplied with any given audio source.

100dB/mW

AKG K553 Pro: 144dB/mW

110dB/mW

7. no battery needed

This device works without batteries. It weighs less and you don't have to worry about recharging or replacing the battery.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

73% have it

8. has a detachable cable

With a detachable cable you can use alternative cables, and if the cable is pulled it will pop out instead of breaking.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

38% have it

9. can be folded

Folding devices are good for transporting as they take up less space in your bag.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

31% have it

10. can be used as a headset

A headset is one headphone or pair with a built-in microphone. Headsets can be used for applications which require communication i.e. Skype, games with voice chat, mobile phones etc.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

36% have it

11. driver unit size

The driver unit is the component that produces sound in the device. Bigger drivers are more powerful and can produce better bass.

40mm

Audeze EL-8 Titanium: 100mm

40mm

12. has stereo speakers

Devices with stereo speakers deliver sound that surrounds the user from left and right side, creating a richer sound and a better experience.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

75% have it

13. has a straight plug

A straight plug is better when the jack is on the top or bottom of your player.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

54% have it

14. has an L-shaped plug

An L-shaped plug is better if the jack is on the left or right side of the device, so that the cable isn't bent, and is less likely to break when the device is in your pocket.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

32% have it

15. Can be used wirelessly

Wireless devices allow users more freedom of movement.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

16% have it

16. control panel placed on a device

There is a control panel on the device body, so you can easily access the volume control or remote without having to interact with a cable or another device it's connected to.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

14% have it

17. has an over-the-ear form

Comfortable full-size form with earcups that fully enclose your ears. This model is loved for its increased sound isolation and the fact that it won't leak sound to your neighbors. It offers potential for maximum bass and loudness levels.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

42% have it

18. travel bag is included

The device comes with its own special case or pouch, which is useful for safe transportation.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

64% have it

19. has an on-ear form

This device comfortably rests on top of your outer ears. As it doesn't block out everything from the outside world, it's preferred in places like office environments and recommended for outdoor activities.

Audio-Technica ATH-WS77

Klipsch Image ONE Bluetooth

22% have it

20. cable length

A long cable ensures more freedom of movement.

1.2m

Pioneer SE-A1000: 6m

1.2m

21. has a 3.5mm male connector

A standard 3.5mm male connector is suitable for use with all MP3 players and computer sound cards.

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